chore(deps): update greenlet requirement in /backend

Updates the requirements on [greenlet](https://github.com/python-greenlet/greenlet) to permit the latest version.
- [Changelog](https://github.com/python-greenlet/greenlet/blob/master/CHANGES.rst)
- [Commits](python-greenlet/greenlet@0.3...3.5.0)

---
updated-dependencies:
- dependency-name: greenlet
  dependency-version: 3.5.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

backend/pyproject.toml

@@ -11,7 +11,7 @@ dependencies = [
     "psycopg2-binary==2.9.10",
     "PyJWT>=2.8.0",
     "sqlalchemy~=2.0.37",
-    "greenlet<3.5.0",
+    "greenlet<3.6.0",
     "supabase>=2.18.1",
     "websocket-client>=1.8.0",
     "pyyaml>=6.0.2",